Manual intermediate frequency resistance welding control cabinet

Abstract

A manual intermediate frequency resistance welding control cabinet comprises a power circuit part and a control circuit part. The power circuit part comprises a three-phase alternating current supply, a three-phase full-bridge rectifying circuit, a filter circuit, an inverter circuit, an intermediate frequency transformer, a one-valve output protection circuit and an output electrode, wherein the three-phase alternating current supply, the three-phase full-bridge rectifying circuit, the filter circuit, the inverter circuit, the intermediate frequency transformer, the one-valve output protection circuit and the output electrode are sequentially connected. The control circuit part comprises a central processing unit, a clock circuit and a sensor circuit. The sensor circuit comprises a primary current sensor and a secondary current sensor, the primary current sensor is coupled to the output end of the inverter circuit and connected with the central processing unit after A / D conversion, the secondary current sensor is coupled to the output end of the one-way output protection circuit and connected with the central processing unit after A / D conversion, and the control port of the central processing unit and the control end of the inverter circuit are connected. By the adoption of the manual intermediate frequency resistance welding control cabinet, welding quality and welding efficiency are both obviously improved, meanwhile, intermediate frequency welding power factors are high, and compared with traditional alternating current welding, power consumption is small, and pollution is low.

Description

technical field [0001] The invention relates to a welding control cabinet, in particular to a manual intermediate frequency resistance welding control cabinet. Background technique [0002] With the development of science and technology and the improvement of manufacturing technology, welding technology has been used more and more in mechanical structures. Compared with other processing techniques, welding technology has outstanding advantages, such as relatively simple equipment structure, good on-site performance, and adaptable to various working conditions. The prominence of these advantages also puts forward higher requirements for welding equipment. As an important part of the welding machine, the resistance welding machine plays an important role in fields such as automobiles, aerospace, and home appliances due to its unique technological characteristics. The traditional single-phase AC spot welding machine has problems such as heavy weight, high energy consumption, ...

AI Technical Summary

Problems solved by technology

The traditional single-phase AC spot welding machine has problems such as heavy weight, high energy consumption, low efficiency and large investment, and the use of intermediate frequency inverter DC welding machine can overcome the above problems

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